diff --git a/druntime/src/core/sys/windows/mmsystem.d b/druntime/src/core/sys/windows/mmsystem.d
index 6957a4449654..ba62056daf0e 100644
--- a/druntime/src/core/sys/windows/mmsystem.d
+++ b/druntime/src/core/sys/windows/mmsystem.d
@@ -18,8 +18,6 @@ pragma(lib, "winmm");
 
 import core.sys.windows.w32api, core.sys.windows.windef, core.sys.windows.winver;
 
-align(1):
-
 enum MAXPNAMELEN = 32;
 enum MAXERRORLENGTH = 256;
 enum MAX_JOYSTICKOEMVXDNAME = 260;